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Feb 24, 2015 01:20 PM ET // Paul Heltzel
Russian scientists discover 20 small sinkholes surrounding a larger crater in Siberia.
Dec 21, 2014 12:00 PM ET // Tia Ghose, LiveScience
Permafrost in Alaska's iconic Denali National Park and other areas could all but disappear by the end of this century, new research suggests.
Nov 10, 2014 09:50 AM ET // Agata Blaszczak Boxe, LiveScience
The mammoth found in the Siberian permafrost contains the only mostly intact mammoth brain known to science and has been described in a new study.
Jul 31, 2014 12:00 PM ET // Tanya Lewis, LiveScience
What created the mysterious giant holes found in Siberia, and could they appear anywhere in the United States?
Mar 4, 2014 09:00 AM ET // Tia Ghose, LiveScience
A mysterious giant virus buried for 30,000 years in Siberian permafrost has been resurrected.
Feb 23, 2011 02:53 PM ET // John D. Cox
Scientists have come up with the first detailed estimates of the amount of carbon that thawing permafrost will add to the atmosphere in the years ahead: hundreds of billions of tons.